FAO-56 Penman-Monteith reference evapotranspiration (ET_0)
penman_fao_diario(Tmin, Tmax, U2, J, Ra = NA, lat = NA, Rs = NA,
tsun = NA, CC = NA, ed = NA, Tdew = NA, RH = NA, P = NA,
P0 = NA, z = NA, crop = "short", na.rm = FALSE)minimum temperature, Celsius
maximum temperature, Celsius
average wind, m/s at 2m
day of the year
radiation, W/m2
latitude, degrees, CRS('+proj=longlat +ellps=WGS84 +datum=WGS84')
daily incoming solar radiation (J m-2 d-1)
sunshine duration, hours
CC
actual vapour pressure
dew point, Celsius
relative humidity, percentage
atmospheric pressure, kPa
P0
mde
"short" short reference crop or "tail" tail reference crop
na.rm
et0, mm/day